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8261027: AArch64: Support for LSE atomics C++ HotSpot code #2434

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8261027: AArch64: Support for LSE atomics C++ HotSpot code #2434

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10a56ca
Intermediate
theRealAph Feb 3, 2021
0669629
Intermediate
theRealAph Feb 3, 2021
b9f5353
Untabify
theRealAph Feb 3, 2021
44cb1c3
Intermediate for perf test
theRealAph Feb 5, 2021
36b7e96
Cleanup
theRealAph Feb 5, 2021
8cba996
Move stuff around
theRealAph Feb 5, 2021
73c3819
Oops
theRealAph Feb 5, 2021
4f17903
Hoist load of stub pointer before FULL_MEM_BARRIER.
theRealAph Feb 5, 2021
31f9c00
Review changes
theRealAph Feb 8, 2021
1cec2f5
Properly align everything
theRealAph Feb 9, 2021
da004ad
Sort includes
theRealAph Feb 9, 2021
42926e4
Move assembler stubs to linux-aarch64 dir.
theRealAph Feb 10, 2021
d156d85
#ifdef LINUX for now.
theRealAph Feb 10, 2021
81d35fe
#ifdef LINUX for now.
theRealAph Feb 10, 2021
239dd7c
Cleanup
theRealAph Feb 10, 2021
747fab1
Spillchuck
theRealAph Feb 11, 2021
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14 changes: 7 additions & 7 deletions src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -5586,39 +5586,39 @@ class StubGenerator: public StubCodeGenerator {
__ align(CodeEntryAlignment);
StubCodeMark mark(this, "StubRoutines", "atomic entry points");

__align(32);
__ align(32);
aarch64_atomic_fetch_add_8_impl = (aarch64_atomic_stub_t)__ pc();
{
Register prev = r2, addr = c_rarg0, incr = c_rarg1;
__ atomic_addal(prev, incr, addr);
__ mov(r0, prev);
__ ret(lr);
}
__align(32);
__ align(32);
aarch64_atomic_fetch_add_4_impl = (aarch64_atomic_stub_t)__ pc();
{
Register prev = r2, addr = c_rarg0, incr = c_rarg1;
__ atomic_addalw(prev, incr, addr);
__ movw(r0, prev);
__ ret(lr);
}
__align(32);
__ align(32);
aarch64_atomic_xchg_4_impl = (aarch64_atomic_stub_t)__ pc();
{
Register prev = r2, addr = c_rarg0, newv = c_rarg1;
__ atomic_xchglw(prev, newv, addr);
__ movw(r0, prev);
__ ret(lr);
}
__align(32);
__ align(32);
aarch64_atomic_xchg_8_impl = (aarch64_atomic_stub_t)__ pc();
{
Register prev = r2, addr = c_rarg0, newv = c_rarg1;
__ atomic_xchgl(prev, newv, addr);
__ mov(r0, prev);
__ ret(lr);
}
__align(32);
__ align(32);
aarch64_atomic_cmpxchg_1_impl = (aarch64_atomic_stub_t)__ pc();
{
Register prev = r3, ptr = c_rarg0, compare_val = c_rarg1,
Expand All @@ -5630,7 +5630,7 @@ class StubGenerator: public StubCodeGenerator {
__ movw(r0, prev);
__ ret(lr);
}
__align(32);
__ align(32);
aarch64_atomic_cmpxchg_4_impl = (aarch64_atomic_stub_t)__ pc();
{
Register prev = r3, ptr = c_rarg0, compare_val = c_rarg1,
Expand All @@ -5642,7 +5642,7 @@ class StubGenerator: public StubCodeGenerator {
__ movw(r0, prev);
__ ret(lr);
}
__align(32);
__ align(32);
aarch64_atomic_cmpxchg_8_impl = (aarch64_atomic_stub_t)__ pc();
{
Register prev = r3, ptr = c_rarg0, compare_val = c_rarg1,
Expand Down